Along the train lines north of New York City, twelve-year-old neighbors Myla and Peter search for the link between Myla's necklace and the disappearance of Peter's brother, Randall. Thrown into a world of parkour, graffiti, and diamond-smuggling, Myla and Peter encounter a band of thugs who are after the same thing as Randall.

"Bee wanted to spend the summer reading Betsy Chillers books and exploring the new spooky theme park with her best friend. Instead, she's spending the summer trapped at Storm Lake with her too loud, too thrifty, and too Indian family. Luckily, Bee finds a place to escape her embarrassment--a magical house across the lake that transforms her into the cool girl she always wanted to be. Maybe cottage life isn't so bad after all! But strange dreams are...